20427372

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{787}}^1$

素因数の和:907

約数の個数: 72

約数和(自身を含む): 59661056

約数和(自身を除く): 39233684

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 103, 126, 206, 252, 309, 412, 618, 721, 787, 927, 1236, 1442, 1574, 1854, 2163, 2361, 2884, 3148, 3708, 4326, 4722, 5509, 6489, 7083, 8652, 9444, 11018, 12978, 14166, 16527, 22036, 25956, 28332, 33054, 49581, 66108, 81061, 99162, 162122, 198324, 243183, 324244, 486366, 567427, 729549, 972732, 1134854, 1459098, 1702281, 2269708, 2918196, 3404562, 5106843, 6809124, 10213686, 20427372]

約数ペア:

[(1, 20427372), (2, 10213686), (3, 6809124), (4, 5106843), (6, 3404562), (7, 2918196), (9, 2269708), (12, 1702281), (14, 1459098), (18, 1134854), (21, 972732), (28, 729549), (36, 567427), (42, 486366), (63, 324244), (84, 243183), (103, 198324), (126, 162122), (206, 99162), (252, 81061), (309, 66108), (412, 49581), (618, 33054), (721, 28332), (787, 25956), (927, 22036), (1236, 16527), (1442, 14166), (1574, 12978), (1854, 11018), (2163, 9444), (2361, 8652), (2884, 7083), (3148, 6489), (3708, 5509), (4326, 4722)]